Now U.S. Officials say it looks like a surface-to-air missile brought the passenger jet down. A much more complex weapon than a shoulder-fired rocket. And it appears to be Russian made. ABC's Martha Raddatz is in Washington with more on that side of the story. Good morning, Martha. Reporter: Good morning, robin. It took that missile only about 30 seconds from the time it was launched to knocking that airliner out of the sky. It is a sophisticated missile system and the U.S. Was able to determine quite quickly through satellites and radars that the plane was shot down. The malyasian airliner was struck by a single missile at an altitude of approximately 33,000 feet, well above the range for shoulder-fired missiles. U.s. Surveillance satellites could track the final seconds of the missile's flight as it struck the aircraft but as yet the U.S. Has not determined whether it was fired from Ukrainian territory or Russian territory. The russian-made anti-aircraft system possibly the sa-11 is a surface-to-air missile system that can reach altitudes up to 45,000 feet. The vehicle mounted system has the ability to launch missiles at four different targets at one time. The Ukrainian military has gadflies in their vent which Russian separatists could have

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